I just finished a practice GMAT:
Verbal: 47 / 99%
Quantitative: 36 / 48%
Total: 660 / 86%
I am absolutely terrible at GMAT math: rearranging answers, making inferences, familiarity with roots and exponents, etc.; that stuff kills me every time. I'm more than halfway through the Knewton course, and still I just get hit with questions and have no idea how to even start the problem. I'm going to re-start the math portion of the course, but in addition, I need to develop a plan of attack ...
I feel there is plenty of low-hanging fruit for me to pick on the math section. Now, obviously my mathematical skill set is not the best, so rather than prep to score a 60 I figure it's best to (1) cram for the things that show up most often, and (2) put in extra study on the math topics that I'm best at, DS for one, in order to gain some extra points there.
My main question: what are the most commonly tested GMAT math topics, and what percentage of questions hit those topics? In addition, if you developed your own GMAT math regimen that worked for you, what was it? How did it go? I'm open to any and all other advice, except 'go back to school to become an English major.'
Thanks!